Portable terrane communication machine

Abstract

The invention relates to a portable terrane communicator for down-hole coal mine. Now traditional wired communication technology is still used in down-hole. When heavy accident occurs under coal mine, communication system suffers heavy destruction and can not transmit information in time, which results in loss of best rescuing opportunity, human life and possession. The inventive portable terrane communicator using terrane as transmitting medium is composed of DSP modulation and demodulation circuit, CPU controller, vocoder, receiving and transmitting converter, A / D conversion circuit, amplification circuit, microphone, speaker, register, D / A conversion circuit, receiving and amplification circuit, smooth filter circuit, preamplifier circuit, transmitting amplification circuit, antenna. In the invention computer hardware technology and electronic element circuit technology are combined to change communication technology of using terrane as transmission medium into reality.

Description

technical field [0001] The invention belongs to the technical field of communication equipment, and in particular relates to a portable rock formation communication machine used in underground coal mines. technical background [0002] In the current underground communication of coal mines, the traditional wired communication technology is still used. This communication method can timely, truly and effectively reflect the safety of personnel, production status, and equipment operation in a stable and normal production environment. It plays an active role in the safe production of coal mines. However, when a major accident occurs in a coal mine, the communication system is severely damaged, and information cannot be transmitted to the ground in time, which often makes the ground unable to grasp the real situation of the disaster in time, and loses the best time for rescue, which brings great harm to people's lives and property. Huge losses have been incurred, and the lessons ...

AI Technical Summary

Problems solved by technology

To sum up, all kinds of communicators proposed above cannot realize voice communication; second, the transmission distance is limited; third, the existing coal mine communication still relies on cables or induction to complete signal transmission and reception.

Therefore, when an emergency comes, the communication cable is damaged, and the transmission and reception of the communication signal is difficult to be guaranteed.

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